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Use this object to specify Real Time Control Protocol (RTCP) options for the call. RTCP is used to report network traffic congestion data. Various actions (for example call disconnect) may be taken when congestion threshold settings are exceeded.

To View and Edit Rtcp Options

  1. On the SBC main screen, go to Configuration > Profile Management > Category: Media Profiles > Packet Service Profile > Rtcp Options.
  2. Select the desired Packet Service Profile from the drop-down list to view its respective Rtcp Options parameters.

    The Rtcp Options window is displayed.

    Figure : Profile Management - Media Profiles - Packet Service Profile - Rtcp Options

     


    The following fields are displayed:

    Table : Packet Service Profile - RTCP Options Parameters

    ParameterDescription
    Rtcp

    RTCP is used to report network traffic congestion data. Various actions (for example call disconnect) may be taken when congestion threshold settings are exceeded. The options are:

    • Disable (default) – Do not use RTCP for the call.
    • Enable – Use RTCP for the call.
    Termination For PassthroughSpecifies RTCP termination behavior for pass-through calls. The options are:
    • Disable (default) – RTCP is relayed between the end points for pass-through calls.
    • Enable – Enable flag (as well as Rtcp flag) on one leg to terminate RTCP sessions on each leg for pass-through calls. If RTCP and RTCP termination is enabled on one leg of a pass-through call, RTCP is terminated and originated for that leg. If RTCP is enabled on both legs on the pass-through call, irrespective of Termination For Passthroug settings, RTCP is always relayed.

    NOTE: This parameter is visible only when Rtcp flag is enabled.

    Enable RTCPFor Held Calls

    If this flag is enabled, SBC ignores the configured RR/RS values in the Packet Service Profile and send RR/RS = 0 in the offer/answer and disables RTCP when the call is active. When the call is HELD, and a RE-INVITE is sent, SBC uses the configured values in the Packet Service Profile for RTCP bandwidth and enables RTCP. When the call is RESUMED, SBC again disables RTCP by sending RR/RS=0 in the RE-INVITE.

    The value of RR ranges from 100-4000 and the value of RS ranges from 100-3000.

    If this flag is disabled, the older behavior of SBC is applicable.

    • Disabled (default)
    • Enabled

    NOTE: This parameter is visible only when Rtcp flag is enabled.

    Packet Loss Threshold

    Enter a value of 0, or a value in the range of 400-32767 (default =0) to specify the Packet Loss Threshold (number of lost packets/100,000) which will trigger a Packet Loss Action. This parameter is required if RTCP is enabled. When set to “0”, no packet loss inactivity detection is performed. 

    This setting can be used in conjunction with  Media Peer Inactivity. To set media peer inactivity timeout value, refer to the Media Peer Inactivity parameter in Media Peer Inactivity page.

    For an example configuration of this parameter, refer to Packet Service Profile (CLI) page.

    NOTE: Configuring this parameter to a value less than 400 disables threshold detection, so be sure to use a value in the range of 400 to 32757 to enable threshold detection.

    NOTE: This parameter is visible only when Rtcp flag is enabled.

    Modified: for 5.1.5

    Rr Bandwidth

    Specifies the RTCP bandwidth allocated to active data senders. The value ranges from 100 to 4000 and the default value is 250.

    NOTE: This parameter is visible only when Rtcp flag is enabled.

     

    Rs Bandwidth

    Specifies the RTCP bandwidth allocated for receivers. The value ranges from 100 to 3000 and the default value is 250.

    NOTE: This parameter is visible only when Rtcp flag is enabled.

     

    Packet Loss ActionSpecifies what Packet loss action to take when packet threshold is exceeded. The options are:
    • None – Take no action.
    • Packet Loss Trap – Generate trap.
    • Packet Loss Trap And Disconnect – Generate trap and disconnect.

    NOTE: This parameter is visible only when Rtcp flag is enabled.

  3. Make the required changes and click Save at the right hand bottom of the panel to save the changes made.